Guide to assorted AR15 carbine stocks

[Stickman]

Colt Ribbed Stock- Similar to CMT/ Stag ribbed stocks.

The below stock is standard issue on the military M4.











Below is a picture of an aftermarket stock. The stock on top is Colt, while the bottom is RRA. CMT/ Stag uses a milspec size, while RRA, DPMS, Bushmaser, Olympic Arms, and a few others use a commercial size instead. From the picture you can see that they are similar, but not quite the same in overall appearance. Non-Colt stocks, tend to all have a rounded section instead of the squared off portion.